rogers



2 sheets-sheen 1.

(No Modeln.) O. K. ROGERS.

DEVICE FOR OPERATING HATOHWAY DOORS.

Patented' July l14, 1891.

me ma yuans no., mmuruu., wAsummcu. u. c.

`2 Sheets-Sheet 2.

y o.-K. ROGERS. DEVICE POR OPERATING HTGHWAY DOORS.

(No Model.)

No. 456,063.l Patent-ed Ju1y'14i-21891.l

UNITED STATES PATENT OFFICE.

COLUMBUSK. ROGERS, OF SALEM, MASSACHUSETTS, ASSIGNOR TO CHARLES FjOUR/VEN, OF SAME PLACE.

DEVICE FOR OPERATINGv HATCHWAY-DOORS.

`SPECIFICATION forming part of Letters Patent N o. 156,063, dated July 14, 1891.

Application led February ll, 1891. Serial No. 381,027. (No model.)

To all whom, it may concern.:

Be it known that l, COLUMBUS K. ROGERS, a citizen of the United States, and a resident of Salem, in the county of Essex and State of Massachusetts, have invented new and useful Improvementsin Self-Closing Hatches, of which the following, taken in connection with Ehe accompanying drawings, is a specificaion.

This invention relates to improvements in self-closing hatches for elevator-wells and mechanism for automatically opening and closing the same by the motion of the car, as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, wherein- Figure 1 Vrepresents a side elevation of the invention, showing the hatches partially open. Fig. 2 represents a cross-section on the line X X, shown in Fig. 1. Fig. 3 represents an end elevation, and Fig. 4 represents a detail plan View, of the automatic mechanism for opening the hatches. Fig. 5 representsa side elevation of one of the pivoted levers forming part of the automatic mechanism, and Fig. 6 represents a bottom plan view of the same.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

A in Figs. 1 and 2 represents an elevatorwell, as usual.

B represents one of the iioors in the building through which the well passes.

C is the car,which is raised and lowered by means of a hoisting-rope or any other wellknown device or mechanism.

D l) represent the vertical well-posts on which the car is guided during its up and down movement in the usual manner, such posts having preferably secured to their inner sides the vertical bars d d, adapted to receive the shoes c, which are secured on the car C, for the purpose of properly guiding the latter during its vertical motion.l

E E represent the hatches hinged in their outer edges at e e, as usual.

To the bottom of the car C are secured the cams or inclines C', and to two opposite sides of the car are secured the metal straps C", which extend upwardV above the carin the form of an arch or bail C3. (Shown indotted lines in Fig. l.)

To each postD is secured a lever F, having the branching arm F3 and pivoted to the said post at f, and having journaled at its inner end an anti-friction roller f', adapted to be actuated by the cam or incline C during the descent of the car. to the lever F and its branching arm F3 are loosely journaled the sheaves or cord-pulleys G and g, as shown in Figs. 1, 2, and 3. Above the lever F is secured to the post D a bearing plate or bracket H, having a stud or pin h, on which is loosely journaled the sheave or cord-pulley H', and to said bracket H is adjustably secured the turn-buckle or adjustable tension device H, (shown in Figs. 1 and 3,) by which one end of the hatch-rope lis connected to the well-posts, while the other end of said rope is secured to the hatch'E, as shown in Fig. 1. The said hatch-rope I is preferably made of twisted `metal Wires; but it may be made of any other suitable or well known material without departing from the essence of my invention. The hatch-rope l is guided over the sheaves or rollers g, H', and G in a manner as fully shown in Figs. 1 and 3. The inner end of the lever F is preferably Weighted, so that it will automatically be caused tov swing or drop to the position shown in dotted lines in the right hand of Fig. 1, when the weight of the hatch is relieved from the rope l.

The studs 'of the sheaves or rollers G g are preferably adjustably secured in slotted perforations F F f (shownin detail in Fig. 5) for the purpose of adjusting the respective positions of the said sheaves relative to the width of the hatches for which the device is to be used. During the normal closed positions of the hatches E the levers F are automatically swung by means of the connectingropes I to the horizontal (or nearly so) position, as fully shown in dotted lines'inthe left hand of Fig. 1.

The operation of the device is as follows: During the downward motion of the car C and before it reaches the hatches E the cams or inclines C come in contact with the rollers f' at the inner ends of the pivoted levers On studs or pins secured IOO F, causing the said levers F to be swung to the vertical (or nearly so) position shown in dotted lines in the right hand ot Fig. l, and during such movelnent of said levers F the hatches E are automatically swung` to the vertical positions shown in the right hand of Fig. l by the ropes I being tightened by the pulleys G g and the idler II', and remain in such position until the upper end ot' the car passes by the said hatches, which are then caused by their own gravity to swing to their closed positions, causing during such closing movement the levers F to be returned to their normal positions, all as shown in dotted lines in the left hand of Fig. l.

During the upward motion of the car the arch or bail C cornes in contact with theunder sides of the hatches E, and causes them to be swung into vertical open positions, by which the strain or tension on the ropes I is relieved, allowing the weighted levers F by their own gravity to assume the vertical (or nearly so) positions, as shown in the right hand ot' Fig. l, so as to allow the car to pass freely by such levers during the upward movement Ot' the ear, and as the cam C passes by the inner end of the lever F it auton'iatically allows the latter to gradually assume its normal. position, allowing the hatch to be closed quietly without a shock.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Paten t, and cl ai inl. The combination ot' the guide-posts provided with sheaves, the elevator-car having the cams or inclines, the hatchway-doors, the operating=leverspivoted totheguide-postsand having the branching arms and the sheaves thereon, and the hatch-door-operating ropes connected at one end with the guide-posts above the levers, passing down over the sheaves on the levers,`thence up over the sheaves on the guide-posts, and thence down over the sheaves on the branching arms to the hatch-doors, substantially as described.

2. rlhe combination of the guide-posts provided with sheaves and adjustable tension devices, the elevator-car having the cams or inclines, the hatchway-doors, the operatinglevers pivoted to the guide-posts and having the branchingl arms and-the sheaves thereon, an d the hateh-door-operatin g ropes connected at one end to the adjustable tension devices above the levers, passing down over the sheaves on the levers, thence up over the sheaves on the guide-posts, and thence down over the sheaves on the branching arms to the hatch-doors, substantially as described.

In testimony whereot` I have signed my naine to this specification, in the presence ot two subscribing witnesses, on this 21st day of January, A. D. 1891.

COLUMBUS l. ROGERS.

IVitnesses:

ALBAN ANDRN, 'IHEKLA ANDRN. 

